Hi! I'm very new user of R! I need to learn more about! My problems are to create a time series with exiting data and to make an study: 1 ) I have column with DD-MM-YR, to transform from string text to date, and use it as to use as time series, I've made the transformation with command "as.date" but how i can say To R that the column "date" is the time column to use for TS analysis?
2) Problem: the date are not in a regular interval but like: 12-05-2009 14-05-2009 20-05-2009 and so on for each date I've many measurement that correspond to displacement registered in many points i.e. http://www.terrafirma.eu.com/Documents/Workshops/WS%206/Advanced%20interpretation%20of%20PSI%20time%20series%20for%20mapping%20and%20characterization%20of%20geological%20hazards%20Naro%20(Italy).pdf HERE So it possible to built a TS? 3) It is possible to identify and to group TS that show simlar trend? and how I can make this? For Example all TS that show seasonal trend I assign class 1, all TS that show long term trend class 2, and so on? Thanks Davide -- View this message in context: http://r.789695.n4.nabble.com/Time-Series-Clustering-for-SAR-data-tp3436226p3436226.html Sent from the R help mailing list archive at Nabble.com. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
